查询词典 acceleration time

Our company has developed the car intelligence anti-collision device, which can make up the current defect in car safety equipment, this product can automatically open blinker flash as warning signal by acceleration at collision time without any hand operation, and send out anti-collision signal, it can be received timely by the coming cars within 150 meters, which makes the driver take measures to avoid traffic accident in advance, thus preventing the rear-end accident, it is the first choice for car intelligence safety upgrade ,and can change the history of no driving on expressway in foggy days.

我公司研制的汽车智能防撞器，能弥补当前汽车安全配置的不足，它能在紧急制动或碰撞时，无须任何手动操作，靠加速度撞击力瞬间自动打开警示灯闪烁示警，并向外发射防撞信号，驶近车辆在150米内能及时接收到危险信号提示，使驾驶员提前采取紧急避让措施，从而有效的防止追尾事故的发生，它是当今汽车智能安全升级的首选，并可改变雾天高速公路不能行车的历史。

TRY this next time you are strolling on a cliff. Toss a rock (the size of a blood orange is good) over the edge and begin to count. It falls at the speed of a tumbling human so will reach 200km per hour after nine seconds, roughly the acceleration of a supercar.

下次你在悬崖边溜达时试试朝悬崖边扔一块石头并开始计时，它会像一个坠落的人一样9秒后达到200km/h，大体像一辆跑车的加速能力。

In this paper, using the concept of the contact angle and considering the capillarity action, the method of small-time expansions is developed to solve accurately nonlinear wave due to the horizental of the plate towards the fluild with an acceleration.

采用对时间t作幂级数展开的方法，利用接触角的概念，并考虑了表面张力的作用，对垂直平板在静止的液体中突然起动所产生的非线性波进行了求解，得到了速度势函数、压强及自由面形状的解析表达式，并对一种特例计算了作用在平板上的动水压强。

Secondly, an adaptive real-time interpolation algorithm for B-spline curves is proposed combined with the chord error control and the largest centripetal acceleration control based on the differential geometry and the properties of B-spline curves.

其次，根据B样条曲线的特性以及微分几何原理，实现了一种带弦高误差控制和法向最大加速度控制的进给步长自适应B样条曲线实时插补算法。

This then led to non-uniform time in relation to a constant acceleration, as the most likely theory.

从这里面最合适的理论来看，这一解释导致了跟恒定加速度有关的非均匀的时间。

The second time derivative is the constant acceleration.

它的二阶导数就是这个恒加速度。

Aelthough the CPU time of each cycle in FBMC is 1.6 times that in MMC, FB schem is still an effective method for convergence acceleration.

本文进一步支持了以分子的平移扩散作为判别抽样效率的判据，指出接受几率在0.33——0.36之间的步长可能是合适的。

Currently, there is a new trend in investigating how to rapidly build and update acceleration structures, and how to best trade culling efficiency against construction time.

当前，有一个新的趋势是研究如何快速的构建与更新加速的结构以及如何最好的平衡剔除效率与构建时间。

During this time, the ship, moving with the acceleration g , will cover the distance L given by the following formula of elementary mechanics

在这段时间里，飞船以加速度 g 前进，前进距离 L 将根据下面基本计算的公式给出

The influences of the shock thickness and Alfven waves on the particle acceleration by diffusive shock waves are numerically studied through solving one-dimensional diffusive equation including the second-order Fermi effect. It is shown that the spectral index of the energetic particles strongly depends on the shock thickness. For example, the spectral index increases from 2.1 to 3.7 in the low energy range of 3-10 MeV and from 2.5 to 5.0 in the high energy range of 20-60 MeV as the thickness increases. The spectral index decreases from 4.3 to 3.1 as the particle injection energy increases. The spectral index decreases from 4.0 to 1.8 at the quasi-steady stage with the enhancement of the compression ratio from 2 to 4. The results indicate that under the influence of Alfven waves, the energetic particle spectrum at lower energy becomes flat and the spectral index decreases from 2.5 to 0.6 in the low energy range of 3-10 MeV and from 11.6 to 5.0 in the high energy range of 20-60 MeV. At the same time, the rollover energy reaches 19.6 MeV. The spectral index decreases from 5.8 to 2.9 as the energy density of Alfven waves increase. All these results are basically consistent with the theoretical models, as well as the observations of typical energetic particle events.

通过数值求解包含二阶费米加速的一维扩散方程，探讨在准平行激波条件下激波厚度和级联阿尔芬波对粒子加速的影响，研究粒子分布函数的演化与激波厚度和阿尔芬波强度的内禀关系，计算结果表明：(1)考虑激波厚度时，谱指数明显依赖于激波厚度，随着厚度从0.32增大到2.56，低能端(3-10MeV)谱指数逐渐从2.1增加到3.7，高能端(20-60MeV)谱指数从2.4增大到5.0，能谱逐渐变软；当初始注入粒子动量增大1.3倍，质子能谱指数从4.3减小到3.1，且与零厚度激波加速的谱指数差值缩小；厚度不变时，随着压缩比从2增加到4，准稳态分布时低能端(3-10MeV)粒子能谱指数逐渐从4.0减小到1.8谱变硬；(2)在级联阿尔芬波的影响下，随着时间的增大，粒子在低能处(3-10MeV)的谱指数从2.5减小到0.6高能端(20-60MeV)谱指数从11.6减小到5.0，能谱变硬，拐点能量值从7.5MeV增大到为19.6MeV；随着波的能量密度增大，谱指数从5.8减小到2.9，这表明阿尔芬波强度越大，加速效率越高，通过与激波厚度解析结果和高能粒子事件的观测能谱比较发现两者是一致的，说明数值模拟结果是可靠的。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷